Determine if including try_number in the UniqueConstraint improves index efficiency

[kaxil]

This is part of the future work of #43243 that migrate TI table's primary key to be a UUID7 string

Determine if including try_number in the UniqueConstraint improves index efficiency.

[abhijeets25012-tech]

i would llike to take it

[potiuk]

Feel free - but we will stop assigning people likely, just work on it and make good PR that will be merged.